Clamp



J. GREGER CLAMP April 27, 1937 Filed March 2'1, 1936 2 Sheets-Sheet 1 BYamy w aa ATTO R N EY WITNESS zmmw April 27, 1937.

J. GREGER CLAMP Filed March 21, 1936 2 Sheets-Sheet 2 ATTORNEY WITNESSPatented Apr. 27, 1937' PATENT OFFICE CLAMP Joseph Gregor, Long IslandCity, N. Y.

Application March 21, 1936, Serial No. 70,159

2 Claims.

This invention relates to clamps especially adapted for handlingstructural steel, railroad rails and like devices and has for theprimary object the provision of a simple, durable and efficient clamp ofthe above stated character which may be readily adjusted so as to beadaptable to different sizes of structural steel and like devices andwhereby the latter may be lifted and carried either by motive or manualpower and when at rest will not become accidentally detached therefrom.

With these and other objects in view, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully "described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a perspective view illustrating a 20 clamp adapted to structuralsteel of I beam construction and which is constructed in accordance withmy invention.

Figure 2 is a perspective view illustrating one of the removable jaws tobe used in conjunction 25 with the clamp.

Figure 3 is a vertical sectional view illustrating the clamp equippedwith the removable jaws and adapted to an I bea'm.

Figure 4 is a fragmentary perspective view il- 30 lustrating a modifiedform of' means for adjustably securing a jaw' shank to the connectingplate.

Figure 5 is a vertical sectional view i1lustrat ing a modified form ofclamp employed for the 35 handling of railroad rails.

Figure 6 is a perspective view illustrating another modified form ofclamp employed for the handling of channel iron.

Figure 7 is a front elevation, partly in section,

40 illustrating another modified form of clamp employed for handlingangle irons.

Referring in detail to the drawings, the numeral I indicates aconnecting plate having formed integrally with its ends converging 45sleeves 2 each of rectangular shape in cross section and each slidablyreceives a corresponding- 1y shaped jaw shank 3 having integral with oneend a jaw 4 including a toe portion 5 and a heel portion 6. The sleeves2 support the shanks 3 in converging relation and the opposed faces ofthe shanks have formed thereon ratchet teeth I engaged by dogs 8 pivotedto the connecting plate I. Adjustingthe connecting plate along 55 theshanks 3 will permit the jaws 4 to be moved apart and towards eachother. The jaws 4 are adapted to engage with an I beam 9, as shown, andwith a lifting force applied to the connecting plate the I beam may bereadily carried from one place to another with safety and when placed atrest the jaws will remain in engagement with said I beam so that dangerof becoming accidentally detached therefrom will be obviated.

Removable jaws of the character shown in Figure 2 may be used inconjunction with the jaws l, as clearly shown in Figure 3, and eachconsists of a plate It having one end bent into hook formation, as shownat H. The plate H] has a slot l2 and traversing said slot is a platelikeportion i3 forming an integral part of the plate ill. The toe of the jaw4 may extend under the plate-like portion l3 and the heel portion 5 isengaged by a pin l4 removably mounted in apertured ears i5 forming anintegral part of the plate H3 and paralleling opposite sides of theslot. The pin I4 is secured to the plate In by a flexible element It.The pin it. when removed from the ears 15 will free the jaw 4 so thatthe plate IE3 may be removed therefrom. The hook-shaped ends H of theplates I0 engage over opposite edges of structural steel or I beams, asshown in Figure 3.

Instead of employing the pivoted dogs 8 and the teeth I, the shanks 3may be equipped with a series of openings IT in which may be positionedpins [8 to engage with the connecting plate 5. The pins l8 are connectedto the plate i by flexible elements I9.

Referring to my modified form of invention, as shown in Figure 5, aconnecting plate 20 has integral with its ends sleeves 2| slidablyreceiving shanks 22. Integral with the shanks 22 are arcuately curvedjaws 23 terminating in heads 24. The connecting plate 20 has a T-shapedhandle 25 secured thereto. The heads 24 of the jaws 23 engage oppositefaces of the web portion 26 of a railroad rail 21 and under the treadportion 28.

Referring to my modified form of invention, as shown in Figure 6, aplate 29 is provided having formed thereon a vertically arranged sleeve30 and also an inclined sleeve 3|. The sleeve 3!] slidably receives ashank 32 which may be held in adjusted position by a pin 33 fitting inany one of a series of openings 34 formed in said shank 32. The pin 33extends through an opening in the sleeve 30 and is connected to theplate 29 by a flexible element 35. The sleeve 3! slidably receives ashank 36 arranged at an angle to the shank 32 and one end thereof hasintegral therewith a jaw 31 shaped similar to the jaw 4. The shank 32has one end integral with a plate-like head 38. The head 38 and jaw 31cooperate in gripping structural steel of channel iron construction, asclearly shown in Figure 6.

Referring to my modified form of invention, as shown in Figure 7, thelatter is of a similar construction to that described in the formdisclosed in figure 6 except a shank 39 is substituted for the shank 32and has a hook-shaped end 40 cooperating with the jaw 31 in grippingstructural steel of angle iron formation.

Having described the invention, I claim;

1. A clamp comprising a connecting plate, sleeves integral with the endsof said plate and arranged angularly to each other, shanks slidablysupported by said sleeves and converging, jaws carried by the convergingends of said shanks, teeth formed on said shanks, and dogs pivoted tosaid plate and engaging the teeth.

2. A clamp comprising a connecting plate, shanks sliclably connected tosaid plate and converging, jaws integral with the converging ends ofsaid shanks, removable jaws including platelike portions slotted toreceive the first-named i jaws and overlying a portion of the latter andeach having one end bent into hook formation, and pins removably securedto. the plate-like portions and engaging the first-named jaws.

JOSEPH GREGER.

